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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.411 by root, Fri Feb 1 15:54:07 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
		32	use YAML ();
22	use IO::AIO 2.31 ();	33	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		45
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		47
35	our %COMMAND = ();	48	our %COMMAND = ();
36	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
		50
		51	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	94	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
56		102
57	binmode STDOUT;	103	binmode STDOUT;
58	binmode STDERR;	104	binmode STDERR;
59		105
60	# read virtual server time, if available	106	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
65	}	111	}
66		112
67	mkdir cf::localdir;	113	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		115
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	133	every server tick.
91		134
92	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
104		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
		161
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	return unless $^S eq 0; # "eq", not "=="
		198
		199	if ($Coro::current == $Coro::main) {#d#
		200	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		201	return;#d#
		202	}#d#
		203
		204	# kill coroutine otherwise
		205	warn Carp::longmess $_[0];
		206	Coro::terminate
		207	};
		208
		209	$SIG{__DIE__} = sub { }; #d#?
125		210
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	215	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		216	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	217	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		218
133	# we bless all objects into (empty) derived classes to force a method lookup	219	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	220	# within the Safe compartment.
135	for my $pkg (qw(	221	for my $pkg (qw(
136	cf::global cf::attachable	222	cf::global cf::attachable
…		…
141	)) {	227	)) {
142	no strict 'refs';	228	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	230	}
145		231
146	$Event::DIED = sub {	232	$EV::DIED = sub {
147	warn "error in event callback: @_";	233	warn "error in event callback: @_";
148	};	234	};
149		235
150	my %ext_pkg;	236	#############################################################################
151	my @exts;
152	my @hook;
153		237
154	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
155		239
156	=over 4	240	=over 4
157		241
158	=cut	242	=item dumpval $ref
159		243
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	244	=cut
161		245
		246	sub dumpval {
		247	eval {
		248	local $SIG{__DIE__};
		249	my $d;
		250	if (1) {
		251	$d = new Data::Dumper([$_[0]], ["*var"]);
		252	$d->Terse(1);
		253	$d->Indent(2);
		254	$d->Quotekeys(0);
		255	$d->Useqq(1);
		256	#$d->Bless(...);
		257	$d->Seen($_[1]) if @_ > 1;
		258	$d = $d->Dump();
		259	}
		260	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		261	$d
		262	} || "[unable to dump $_[0]: '$@']";
		263	}
		264
162	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
163		266
164	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
165		268
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
174		270
175	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
176		272
177	=cut	273	=cut
178		274
179	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
181	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	278	sub decode_json($) { $json_coder->decode ($_[0]) }
183		279
184	=item cf::lock_wait $string	280	=item cf::lock_wait $string
185		281
186	Wait until the given lock is available. See cf::lock_acquire.	282	Wait until the given lock is available. See cf::lock_acquire.
187		283
…		…
190	Wait until the given lock is available and then acquires it and returns	286	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	287	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	288	for example when the coroutine gets canceled), the lock is automatically
193	returned.	289	returned.
194		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
195	Lock names should begin with a unique identifier (for example, cf::map::find	294	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	295	uses map_find and cf::map::load uses map_load).
197		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
198	=cut	301	=cut
199		302
200	our %LOCK;	303	our %LOCK;
		304	our %LOCKER;#d#
201		305
202	sub lock_wait($) {	306	sub lock_wait($) {
203	my ($key) = @_;	307	my ($key) = @_;
		308
		309	if ($LOCKER{$key} == $Coro::current) {#d#
		310	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		311	return;#d#
		312	}#d#
204		313
205	# wait for lock, if any	314	# wait for lock, if any
206	while ($LOCK{$key}) {	315	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	316	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	317	Coro::schedule;
…		…
214		323
215	# wait, to be sure we are not locked	324	# wait, to be sure we are not locked
216	lock_wait $key;	325	lock_wait $key;
217		326
218	$LOCK{$key} = [];	327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
219		329
220	Coro::guard {	330	Coro::guard {
		331	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	332	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	333	$_->ready for @{ delete $LOCK{$key} };
223	}	334	}
224	}	335	}
225		336
		337	sub lock_active($) {
		338	my ($key) = @_;
		339
		340	! ! $LOCK{$key}
		341	}
		342
226	sub freeze_mainloop {	343	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	344	return unless $TICK_WATCHER->is_active;
228		345
229	my $guard = Coro::guard { $TICK_WATCHER->start };	346	my $guard = Coro::guard {
		347	$TICK_WATCHER->start;
		348	};
230	$TICK_WATCHER->stop;	349	$TICK_WATCHER->stop;
231	$guard	350	$guard
232	}	351	}
233		352
		353	=item cf::periodic $interval, $cb
		354
		355	Like EV::periodic, but randomly selects a starting point so that the actions
		356	get spread over timer.
		357
		358	=cut
		359
		360	sub periodic($$) {
		361	my ($interval, $cb) = @_;
		362
		363	my $start = rand List::Util::min 180, $interval;
		364
		365	EV::periodic $start, $interval, 0, $cb
		366	}
		367
		368	=item cf::get_slot $time[, $priority[, $name]]
		369
		370	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		371	This call blocks and returns only when you have at least C<$time> seconds
		372	of cpu time till the next tick. The slot is only valid till the next cede.
		373
		374	The optional C<$name> can be used to identify the job to run. It might be
		375	used for statistical purposes and should identify the same time-class.
		376
		377	Useful for short background jobs.
		378
		379	=cut
		380
		381	our @SLOT_QUEUE;
		382	our $SLOT_QUEUE;
		383
		384	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		385	$SLOT_QUEUE = Coro::async {
		386	$Coro::current->desc ("timeslot manager");
		387
		388	my $signal = new Coro::Signal;
		389
		390	while () {
		391	next_job:
		392	my $avail = cf::till_tick;
		393	if ($avail > 0.01) {
		394	for (0 .. $#SLOT_QUEUE) {
		395	if ($SLOT_QUEUE[$_][0] < $avail) {
		396	my $job = splice @SLOT_QUEUE, $_, 1, ();
		397	$job->[2]->send;
		398	Coro::cede;
		399	goto next_job;
		400	}
		401	}
		402	}
		403
		404	if (@SLOT_QUEUE) {
		405	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		406	push @cf::WAIT_FOR_TICK, $signal;
		407	$signal->wait;
		408	} else {
		409	Coro::schedule;
		410	}
		411	}
		412	};
		413
		414	sub get_slot($;$$) {
		415	my ($time, $pri, $name) = @_;
		416
		417	$time = $TICK * .6 if $time > $TICK * .6;
		418	my $sig = new Coro::Signal;
		419
		420	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		421	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		422	$SLOT_QUEUE->ready;
		423	$sig->wait;
		424	}
		425
		426	=item cf::async { BLOCK }
		427
		428	Currently the same as Coro::async_pool, meaning you cannot use
		429	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		430	thing you are allowed to do is call C<prio> on it.
		431
		432	=cut
		433
		434	BEGIN { *async = \&Coro::async_pool }
		435
234	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
235		437
236	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
239		442
240	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
243	fast or be very important.	446	fast or be very important.
…		…
246		449
247	sub sync_job(&) {	450	sub sync_job(&) {
248	my ($job) = @_;	451	my ($job) = @_;
249		452
250	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
251	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
253		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
254	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	462	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	463	my $freeze_guard = freeze_mainloop;
257		464
258	my $busy = 1;	465	my $busy = 1;
259	my @res;	466	my @res;
260		467
261	(Coro::async_pool {	468	(async {
		469	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	470	@res = eval { $job->() };
263	warn $@ if $@;	471	warn $@ if $@;
264	undef $busy;	472	undef $busy;
265	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
266		474
267	while ($busy) {	475	while ($busy) {
		476	if (Coro::nready) {
268	Coro::cede_notself;	477	Coro::cede_notself;
269	Event::one_event unless Coro::nready;	478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
270	}	480	}
		481	}
		482
		483	$time = EV::time - $time;
		484
		485	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		486	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		487
		488	$tick_start += $time; # do not account sync jobs to server load
271		489
272	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
273	} else {	491	} else {
274	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
275		493
276	$job->()	494	$job->()
277	}	495	}
278	}	496	}
279		497
280	=item $coro = cf::coro { BLOCK }	498	=item $coro = cf::async_ext { BLOCK }
281		499
282	Creates (and readies) and returns a new coro. This coro is automcatially	500	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	501	extension calling this is being unloaded.
284		502
285	=cut	503	=cut
286		504
287	sub coro(&) {	505	sub async_ext(&) {
288	my $cb = shift;	506	my $cb = shift;
289		507
290	my $coro = &Coro::async_pool ($cb);	508	my $coro = &Coro::async ($cb);
291		509
292	$coro->on_destroy (sub {	510	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	511	delete $EXT_CORO{$coro+0};
294	});	512	});
295	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
296		514
297	$coro	515	$coro
298	}	516	}
299		517
300	sub write_runtime {	518	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		519
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	520	Executes the given code block with the given arguments in a seperate
304	or return;	521	process, returning the results. Everything must be serialisable with
		522	Coro::Storable. May, of course, block. Note that the executed sub may
		523	never block itself or use any form of event handling.
305		524
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	525	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		526
310	aio_fsync $fh	527	sub fork_call(&@) {
311	and return;	528	my ($cb, @args) = @_;
312		529
313	close $fh	530	# we seemingly have to make a local copy of the whole thing,
314	or return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
315		533
316	aio_rename "$runtime~", $runtime	534	my @res = Coro::Util::fork_eval {
317	and return;	535	reset_signals;
		536	&$cb
		537	}, @args;
318		538
		539	wantarray ? @res : $res[-1]
		540	}
		541
		542	=item $value = cf::db_get $family => $key
		543
		544	Returns a single value from the environment database.
		545
		546	=item cf::db_put $family => $key => $value
		547
		548	Stores the given C<$value> in the family. It can currently store binary
		549	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		550
		551	=item $db = cf::db_table "name"
		552
		553	Create and/or open a new database table. The string must not be "db" and must be unique
		554	within each server.
		555
		556	=cut
		557
		558	sub db_table($) {
		559	my ($name) = @_;
		560	my $db = BDB::db_create $DB_ENV;
		561
		562	eval {
		563	$db->set_flags (BDB::CHKSUM);
		564
		565	utf8::encode $name;
		566	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		567	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		568	cf::cleanup "db_open(db): $!" if $!;
		569	};
		570	cf::cleanup "db_open(db): $@" if $@;
		571
		572	$db
		573	}
		574
		575	our $DB;
		576
		577	sub db_init {
		578	cf::sync_job {
		579	$DB ||= db_table "db";
		580	};
		581	}
		582
		583	sub db_get($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
319	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		595	BDB::dbreq_pri 4;
		596	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		597	}
		598
		599	=item cf::cache $id => [$paths...], $processversion => $process
		600
		601	Generic caching function that returns the value of the resource $id,
		602	caching and regenerating as required.
		603
		604	This function can block.
		605
		606	=cut
		607
		608	sub cache {
		609	my ($id, $src, $processversion, $process) = @_;
		610
		611	my $meta =
		612	join "\x00",
		613	$processversion,
		614	map {
		615	aio_stat $_
		616	and Carp::croak "$_: $!";
		617
		618	($_, (stat _)[7,9])
		619	} @$src;
		620
		621	my $dbmeta = db_get cache => "$id/meta";
		622	if ($dbmeta ne $meta) {
		623	# changed, we may need to process
		624
		625	my @data;
		626	my $md5;
		627
		628	for (0 .. $#$src) {
		629	0 <= aio_load $src->[$_], $data[$_]
		630	or Carp::croak "$src->[$_]: $!";
		631	}
		632
		633	# if processing is expensive, check
		634	# checksum first
		635	if (1) {
		636	$md5 =
		637	join "\x00",
		638	$processversion,
		639	map {
		640	cf::cede_to_tick;
		641	($src->[$_], Digest::MD5::md5_hex $data[$_])
		642	} 0.. $#$src;
		643
		644
		645	my $dbmd5 = db_get cache => "$id/md5";
		646	if ($dbmd5 eq $md5) {
		647	db_put cache => "$id/meta", $meta;
		648
		649	return db_get cache => "$id/data";
		650	}
		651	}
		652
		653	my $t1 = Time::HiRes::time;
		654	my $data = $process->(\@data);
		655	my $t2 = Time::HiRes::time;
		656
		657	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		658
		659	db_put cache => "$id/data", $data;
		660	db_put cache => "$id/md5" , $md5;
		661	db_put cache => "$id/meta", $meta;
		662
		663	return $data;
		664	}
		665
		666	db_get cache => "$id/data"
		667	}
		668
		669	=item cf::datalog type => key => value, ...
		670
		671	Log a datalog packet of the given type with the given key-value pairs.
		672
		673	=cut
		674
		675	sub datalog($@) {
		676	my ($type, %kv) = @_;
		677	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	678	}
321		679
322	=back	680	=back
323		681
324	=cut	682	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		683
446	#############################################################################	684	#############################################################################
447		685
448	=head2 ATTACHABLE OBJECTS	686	=head2 ATTACHABLE OBJECTS
449		687
…		…
451	attach callbacks/event handlers (a collection of which is called an "attachment")	689	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
453		691
454	In the following description, CLASS can be any of C<global>, C<object>	692	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	693	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	694	Deliantra).
457		695
458	=over 4	696	=over 4
459		697
460	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
461		699
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	813	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	814	our @CB_MAP = ();
577		815
578	my %attachment;	816	my %attachment;
579		817
		818	sub cf::attachable::thawer_merge {
		819	# simply override everything except _meta
		820	local $_[0]{_meta};
		821	%{$_[0]} = %{$_[1]};
		822	}
		823
580	sub _attach_cb($$$$) {	824	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	825	my ($registry, $event, $prio, $cb) = @_;
582		826
583	use sort 'stable';	827	use sort 'stable';
584		828
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
619		863
620	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		868
625	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	870	my $pkg = shift @arg;
627		871
628	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
658	}	902	}
659		903
660	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
661	} else {	905	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	907	}
664		908
665	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
666	}	910	}
667		911
…		…
669	if (ref $_[0]) {	913	if (ref $_[0]) {
670	_object_attach @_;	914	_object_attach @_;
671	} else {	915	} else {
672	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
673	}	917	}
		918	_recalc_want;
674	};	919	};
675		920
676	# all those should be optimised	921	# all those should be optimised
677	sub cf::attachable::detach {	922	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
682	reattach ($obj);	927	reattach ($obj);
683	} else {	928	} else {
684	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
685	}	930	}
		931	_recalc_want;
686	};	932	};
687		933
688	sub cf::attachable::attached {	934	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
690		936
…		…
705	";	951	";
706	die if $@;	952	die if $@;
707	}	953	}
708		954
709	our $override;	955	our $override;
710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	956	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
711		957
712	sub override {	958	sub override {
713	$override = 1;	959	$override = 1;
714	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
715	}	961	}
716		962
717	sub do_invoke {	963	sub do_invoke {
718	my $event = shift;	964	my $event = shift;
719	my $callbacks = shift;	965	my $callbacks = shift;
720		966
721	@invoke_results = ();	967	@INVOKE_RESULTS = ();
722		968
723	local $override;	969	local $override;
724		970
725	for (@$callbacks) {	971	for (@$callbacks) {
726	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
735	}	981	}
736		982
737	0	983	0
738	}	984	}
739		985
740	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
741		987
742	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
743		989
744	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
745		991
746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	992	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
747	removed in future versions), and there is no public API to access override	993	removed in future versions), and there is no public API to access override
748	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		995
750	=back	996	=back
751		997
752	=cut	998	=cut
753		999
754	#############################################################################	1000	#############################################################################
755	# object support	1001	# object support
		1002
		1003	sub _object_equal($$);
		1004	sub _object_equal($$) {
		1005	my ($a, $b) = @_;
		1006
		1007	return 0 unless (ref $a) eq (ref $b);
		1008
		1009	if ("HASH" eq ref $a) {
		1010	my @ka = keys %$a;
		1011	my @kb = keys %$b;
		1012
		1013	return 0 if @ka != @kb;
		1014
		1015	for (0 .. $#ka) {
		1016	return 0 unless $ka[$_] eq $kb[$_];
		1017	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1018	}
		1019
		1020	} elsif ("ARRAY" eq ref $a) {
		1021
		1022	return 0 if @$a != @$b;
		1023
		1024	for (0 .. $#$a) {
		1025	return 0 unless _object_equal $a->[$_], $b->[$_];
		1026	}
		1027
		1028	} elsif ($a ne $b) {
		1029	return 0;
		1030	}
		1031
		1032	1
		1033	}
		1034
		1035	our $SLOW_MERGES;#d#
		1036	sub _can_merge {
		1037	my ($ob1, $ob2) = @_;
		1038
		1039	++$SLOW_MERGES;#d#
		1040
		1041	# we do the slow way here
		1042	return _object_equal $ob1, $ob2
		1043	}
756		1044
757	sub reattach {	1045	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	1047	my ($obj) = @_;
		1048
		1049	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		1050
761	my $registry = $obj->registry;	1051	my $registry = $obj->registry;
762		1052
763	@$registry = ();	1053	@$registry = ();
764		1054
…		…
779	cf::attachable->attach (	1069	cf::attachable->attach (
780	prio => -1000000,	1070	prio => -1000000,
781	on_instantiate => sub {	1071	on_instantiate => sub {
782	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
783		1073
784	$data = from_json $data;	1074	$data = decode_json $data;
785		1075
786	for (@$data) {	1076	for (@$data) {
787	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
788		1078
789	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
805	sub object_freezer_save {	1095	sub object_freezer_save {
806	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
807		1097
808	sync_job {	1098	sync_job {
809	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
810	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
811	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
812		1103
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	1107	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	1108	close $fh;
818		1109
819	if (@$objs) {	1110	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1111	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	1115	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	1116	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
827	}	1118	}
828	} else {	1119	} else {
829	aio_unlink "$filename.pst";	1120	aio_unlink "$filename.pst";
…		…
835	}	1126	}
836	} else {	1127	} else {
837	aio_unlink $filename;	1128	aio_unlink $filename;
838	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
839	}	1130	}
840	}	1131	};
841	}	1132	}
842		1133
843	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
845		1136
…		…
857	or return;	1148	or return;
858		1149
859	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
860	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
861	or return;	1152	or return;
		1153
862	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
863	}	1156	}
864		1157
		1158	utf8::decode (my $decname = $filename);
865	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
867	return ($data, $av);	1162	($data, $av)
868	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
869		1170
870	#############################################################################	1171	#############################################################################
871	# command handling &c	1172	# command handling &c
872		1173
873	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1188	}
888		1189
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1191
891	Register a callbackf ro execution when the client sends an extcmd packet.	1192	Register a callback for execution when the client sends an (synchronous)
		1193	extcmd packet. Ext commands will be processed in the order they are
		1194	received by the server, like other user commands. The first argument is
		1195	the logged-in player. Ext commands can only be processed after a player
		1196	has logged in successfully.
892		1197
893	If the callback returns something, it is sent back as if reply was being	1198	If the callback returns something, it is sent back as if reply was being
894	called.	1199	called.
895		1200
		1201	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1202
		1203	Register a callback for execution when the client sends an (asynchronous)
		1204	exticmd packet. Exti commands are processed by the server as soon as they
		1205	are received, i.e. out of order w.r.t. other commands. The first argument
		1206	is a client socket. Exti commands can be received anytime, even before
		1207	log-in.
		1208
		1209	If the callback returns something, it is sent back as if reply was being
		1210	called.
		1211
896	=cut	1212	=cut
897		1213
898	sub register_extcmd {	1214	sub register_extcmd {
899	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
900		1216
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
905	}	1224	}
906		1225
907	cf::player->attach (	1226	cf::player->attach (
908	on_command => sub {	1227	on_command => sub {
909	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
918	cf::override;	1237	cf::override;
919	},	1238	},
920	on_extcmd => sub {	1239	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
922		1241
923	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1243
925	if (ref $msg) {	1244	if (ref $msg) {
		1245	my ($type, $reply, @payload) =
		1246	"ARRAY" eq ref $msg
		1247	? @$msg
		1248	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1249
		1250	my @reply;
		1251
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
928	$pl->ext_reply ($msg->{msgid}, %reply);
929	}
930	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
931	} else {	1259	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1261	}
934		1262
935	cf::override;	1263	cf::override;
936	},	1264	},
937	);	1265	);
938		1266
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1267	sub load_extensions {
		1268	cf::sync_job {
		1269	my %todo;
		1270
		1271	for my $path (<$LIBDIR/*.ext>) {
		1272	next unless -r $path;
		1273
		1274	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1275	my $base = $1;
		1276	my $pkg = $1;
		1277	$pkg =~ s/[^[:word:]]/_/g;
		1278	$pkg = "ext::$pkg";
		1279
		1280	open my $fh, "<:utf8", $path
		1281	or die "$path: $!";
		1282
		1283	my $source = do { local $/; <$fh> };
		1284
		1285	my %ext = (
		1286	path => $path,
		1287	base => $base,
		1288	pkg => $pkg,
		1289	);
		1290
		1291	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1292	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1293
		1294	$ext{source} =
		1295	"package $pkg; use strict; use utf8;\n"
		1296	. "#line 1 \"$path\"\n{\n"
		1297	. $source
		1298	. "\n};\n1";
		1299
		1300	$todo{$base} = \%ext;
		1301	}
		1302
		1303	my %done;
		1304	while (%todo) {
		1305	my $progress;
		1306
		1307	while (my ($k, $v) = each %todo) {
		1308	for (split /,\s*/, $v->{meta}{depends}) {
		1309	goto skip
		1310	unless exists $done{$_};
		1311	}
		1312
		1313	warn "... loading '$k' into '$v->{pkg}'\n";
		1314
		1315	unless (eval $v->{source}) {
		1316	my $msg = $@ ? "$v->{path}: $@\n"
		1317	: "$v->{base}: extension inactive.\n";
		1318
		1319	if (exists $v->{meta}{mandatory}) {
		1320	warn $msg;
		1321	cf::cleanup "mandatory extension failed to load, exiting.";
		1322	}
		1323
		1324	warn $msg;
		1325	}
		1326
		1327	$done{$k} = delete $todo{$k};
		1328	push @EXTS, $v->{pkg};
		1329	$progress = 1;
		1330	}
		1331
		1332	skip:
		1333	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1334	unless $progress;
		1335	}
		1336	};
		1337	}
		1338
		1339	#############################################################################
		1340
		1341	=back
		1342
		1343	=head2 CORE EXTENSIONS
		1344
		1345	Functions and methods that extend core crossfire objects.
		1346
		1347	=cut
		1348
		1349	package cf::player;
		1350
		1351	use Coro::AIO;
		1352
		1353	=head3 cf::player
		1354
		1355	=over 4
		1356
		1357	=item cf::player::num_playing
		1358
		1359	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1360
		1361	=cut
		1362
		1363	sub num_playing {
		1364	scalar grep
		1365	$_->ob->map
		1366	&& !$_->hidden
		1367	&& !$_->ob->flag (cf::FLAG_WIZ),
		1368	cf::player::list
		1369	}
		1370
		1371	=item cf::player::find $login
		1372
		1373	Returns the given player object, loading it if necessary (might block).
		1374
		1375	=cut
		1376
		1377	sub playerdir($) {
		1378	"$PLAYERDIR/"
		1379	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1380	}
		1381
		1382	sub path($) {
		1383	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1384
		1385	(playerdir $login) . "/playerdata"
		1386	}
		1387
		1388	sub find_active($) {
		1389	$cf::PLAYER{$_[0]}
		1390	and $cf::PLAYER{$_[0]}->active
		1391	and $cf::PLAYER{$_[0]}
		1392	}
		1393
		1394	sub exists($) {
		1395	my ($login) = @_;
		1396
		1397	$cf::PLAYER{$login}
		1398	or cf::sync_job { !aio_stat path $login }
		1399	}
		1400
		1401	sub find($) {
		1402	return $cf::PLAYER{$_[0]} || do {
		1403	my $login = $_[0];
		1404
		1405	my $guard = cf::lock_acquire "user_find:$login";
		1406
		1407	$cf::PLAYER{$_[0]} || do {
		1408	# rename old playerfiles to new ones
		1409	#TODO: remove when no longer required
		1410	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1411	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1412	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1413	aio_unlink +(playerdir $login) . "/$login.pl";
		1414
		1415	my $f = new_from_file cf::object::thawer path $login
		1416	or return;
		1417
		1418	my $pl = cf::player::load_pl $f
		1419	or return;
		1420	local $cf::PLAYER_LOADING{$login} = $pl;
		1421	$f->resolve_delayed_derefs;
		1422	$cf::PLAYER{$login} = $pl
		1423	}
		1424	}
		1425	}
		1426
		1427	sub save($) {
		1428	my ($pl) = @_;
		1429
		1430	return if $pl->{deny_save};
		1431
		1432	my $path = path $pl;
		1433	my $guard = cf::lock_acquire "user_save:$path";
		1434
		1435	return if $pl->{deny_save};
		1436
		1437	aio_mkdir playerdir $pl, 0770;
		1438	$pl->{last_save} = $cf::RUNTIME;
		1439
		1440	$pl->save_pl ($path);
		1441	cf::cede_to_tick;
		1442	}
		1443
		1444	sub new($) {
		1445	my ($login) = @_;
		1446
		1447	my $self = create;
		1448
		1449	$self->ob->name ($login);
		1450	$self->{deny_save} = 1;
		1451
		1452	$cf::PLAYER{$login} = $self;
		1453
		1454	$self
		1455	}
		1456
		1457	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1458
		1459	=cut
		1460
		1461	sub send_msg {
		1462	my $ns = shift->ns
		1463	or return;
		1464	$ns->send_msg (@_);
		1465	}
		1466
		1467	=item $pl->quit_character
		1468
		1469	Nukes the player without looking back. If logged in, the connection will
		1470	be destroyed. May block for a long time.
		1471
		1472	=cut
		1473
		1474	sub quit_character {
		1475	my ($pl) = @_;
		1476
		1477	my $name = $pl->ob->name;
		1478
		1479	$pl->{deny_save} = 1;
		1480	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1481
		1482	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1483	$pl->deactivate;
		1484	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1485	$pl->ns->destroy if $pl->ns;
		1486
		1487	my $path = playerdir $pl;
		1488	my $temp = "$path~$cf::RUNTIME~deleting~";
		1489	aio_rename $path, $temp;
		1490	delete $cf::PLAYER{$pl->ob->name};
		1491	$pl->destroy;
		1492
		1493	my $prefix = qr<^~\Q$name\E/>;
		1494
		1495	# nuke player maps
		1496	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1497
		1498	IO::AIO::aio_rmtree $temp;
		1499	}
		1500
		1501	=item $pl->kick
		1502
		1503	Kicks a player out of the game. This destroys the connection.
		1504
		1505	=cut
		1506
		1507	sub kick {
		1508	my ($pl, $kicker) = @_;
		1509
		1510	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1511	$pl->killer ("kicked");
		1512	$pl->ns->destroy;
		1513	}
		1514
		1515	=item cf::player::list_logins
		1516
		1517	Returns am arrayref of all valid playernames in the system, can take a
		1518	while and may block, so not sync_job-capable, ever.
		1519
		1520	=cut
		1521
		1522	sub list_logins {
		1523	my $dirs = aio_readdir $PLAYERDIR
		1524	or return [];
		1525
		1526	my @logins;
		1527
		1528	for my $login (@$dirs) {
		1529	my $path = path $login;
		1530
		1531	# a .pst is a dead give-away for a valid player
		1532	unless (-e "$path.pst") {
		1533	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1534	aio_read $fh, 0, 512, my $buf, 0 or next;
		1535	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1536	}
		1537
		1538	utf8::decode $login;
		1539	push @logins, $login;
		1540	}
		1541
		1542	\@logins
		1543	}
		1544
		1545	=item $player->maps
		1546
		1547	Returns an arrayref of map paths that are private for this
		1548	player. May block.
		1549
		1550	=cut
		1551
		1552	sub maps($) {
		1553	my ($pl) = @_;
		1554
		1555	$pl = ref $pl ? $pl->ob->name : $pl;
		1556
		1557	my $files = aio_readdir playerdir $pl
		1558	or return;
		1559
		1560	my @paths;
		1561
		1562	for (@$files) {
		1563	utf8::decode $_;
		1564	next if /\.(?:pl|pst)$/;
		1565	next unless /^$PATH_SEP/o;
		1566
		1567	push @paths, cf::map::normalise "~$pl/$_";
		1568	}
		1569
		1570	\@paths
		1571	}
		1572
		1573	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1574
		1575	Expand crossfire pod fragments into protocol xml.
		1576
		1577	=cut
		1578
		1579	use re 'eval';
		1580
		1581	my $group;
		1582	my $interior; $interior = qr{
		1583	# match a pod interior sequence sans C<< >>
		1584	(?:
		1585	\ (.*?)\ (?{ $group = $^N })
		1586	| < (??{$interior}) >
		1587	)
		1588	}x;
		1589
		1590	sub expand_cfpod {
		1591	my ($self, $pod) = @_;
		1592
		1593	my $xml;
		1594
		1595	while () {
		1596	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1597	$group = $1;
		1598
		1599	$group =~ s/&/&amp;/g;
		1600	$group =~ s/</&lt;/g;
		1601
		1602	$xml .= $group;
		1603	} elsif ($pod =~ m%\G
		1604	([BCGHITU])
		1605	<
		1606	(?:
		1607	([^<>]*) (?{ $group = $^N })
		1608	| < $interior >
		1609	)
		1610	>
		1611	%gcsx
		1612	) {
		1613	my ($code, $data) = ($1, $group);
		1614
		1615	if ($code eq "B") {
		1616	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1617	} elsif ($code eq "I") {
		1618	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1619	} elsif ($code eq "U") {
		1620	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1621	} elsif ($code eq "C") {
		1622	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1623	} elsif ($code eq "T") {
		1624	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1625	} elsif ($code eq "G") {
		1626	my ($male, $female) = split /\|/, $data;
		1627	$data = $self->gender ? $female : $male;
		1628	$xml .= expand_cfpod ($self, $data);
		1629	} elsif ($code eq "H") {
		1630	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1631	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1632	"")
		1633	[$self->{hintmode}];
		1634	} else {
		1635	$xml .= "error processing '$code($data)' directive";
		1636	}
		1637	} else {
		1638	if ($pod =~ /\G(.+)/) {
		1639	warn "parse error while expanding $pod (at $1)";
		1640	}
		1641	last;
		1642	}
		1643	}
		1644
		1645	for ($xml) {
		1646	# create single paragraphs (very hackish)
		1647	s/(?<=\S)\n(?=\w)/ /g;
		1648
		1649	# compress some whitespace
		1650	s/\s+\n/\n/g; # ws line-ends
		1651	s/\n\n+/\n/g; # double lines
		1652	s/^\n+//; # beginning lines
		1653	s/\n+$//; # ending lines
		1654	}
		1655
		1656	$xml
		1657	}
		1658
		1659	no re 'eval';
		1660
		1661	sub hintmode {
		1662	$_[0]{hintmode} = $_[1] if @_ > 1;
		1663	$_[0]{hintmode}
		1664	}
		1665
		1666	=item $player->ext_reply ($msgid, @msg)
		1667
		1668	Sends an ext reply to the player.
		1669
		1670	=cut
		1671
		1672	sub ext_reply($$@) {
		1673	my ($self, $id, @msg) = @_;
		1674
		1675	$self->ns->ext_reply ($id, @msg)
		1676	}
		1677
		1678	=item $player->ext_msg ($type, @msg)
		1679
		1680	Sends an ext event to the client.
		1681
		1682	=cut
		1683
		1684	sub ext_msg($$@) {
		1685	my ($self, $type, @msg) = @_;
		1686
		1687	$self->ns->ext_msg ($type, @msg);
		1688	}
		1689
		1690	=head3 cf::region
		1691
		1692	=over 4
		1693
		1694	=cut
		1695
		1696	package cf::region;
		1697
		1698	=item cf::region::find_by_path $path
		1699
		1700	Tries to decuce the likely region for a map knowing only its path.
		1701
		1702	=cut
		1703
		1704	sub find_by_path($) {
946	my ($path) = @_;	1705	my ($path) = @_;
947		1706
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1707	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1708
954	warn "loading '$path' into '$pkg'\n";	1709	for my $region (list) {
955		1710	if ($region->{match} && $path =~ $region->{match}) {
956	open my $fh, "<:utf8", $path	1711	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1712	if $region->specificity > $specificity;
958		1713	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1714	}
988		1715
989	# remove commands	1716	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1717	}
1095		1718
1096	=back	1719	=back
1097
1098		1720
1099	=head3 cf::map	1721	=head3 cf::map
1100		1722
1101	=over 4	1723	=over 4
1102		1724
…		…
1105	package cf::map;	1727	package cf::map;
1106		1728
1107	use Fcntl;	1729	use Fcntl;
1108	use Coro::AIO;	1730	use Coro::AIO;
1109		1731
		1732	use overload
		1733	'""' => \&as_string,
		1734	fallback => 1;
		1735
1110	our $MAX_RESET = 3600;	1736	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1737	our $DEFAULT_RESET = 3000;
1112		1738
1113	sub generate_random_map {	1739	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1740	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1741	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1742	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1743	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1744	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1745	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1746	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1747	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1748	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1749	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1750	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1751	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1752	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1753	(cf::region::find $rmp->{region}), $rmp->{custom}
		1754	)
		1755	}
		1756
		1757	=item cf::map->register ($regex, $prio)
		1758
		1759	Register a handler for the map path matching the given regex at the
		1760	givne priority (higher is better, built-in handlers have priority 0, the
		1761	default).
		1762
		1763	=cut
		1764
		1765	sub register {
		1766	my (undef, $regex, $prio) = @_;
		1767	my $pkg = caller;
		1768
		1769	no strict;
		1770	push @{"$pkg\::ISA"}, __PACKAGE__;
		1771
		1772	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1773	}
		1774
		1775	# also paths starting with '/'
		1776	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1777
		1778	sub thawer_merge {
		1779	my ($self, $merge) = @_;
		1780
		1781	# we have to keep some variables in memory intact
		1782	local $self->{path};
		1783	local $self->{load_path};
		1784
		1785	$self->SUPER::thawer_merge ($merge);
		1786	}
		1787
		1788	sub normalise {
		1789	my ($path, $base) = @_;
		1790
		1791	$path = "$path"; # make sure its a string
		1792
		1793	$path =~ s/\.map$//;
		1794
		1795	# map plan:
		1796	#
		1797	# /! non-realised random map exit (special hack!)
		1798	# {... are special paths that are not being touched
		1799	# ?xxx/... are special absolute paths
		1800	# ?random/... random maps
		1801	# /... normal maps
		1802	# ~user/... per-player map of a specific user
		1803
		1804	$path =~ s/$PATH_SEP/\//go;
		1805
		1806	# treat it as relative path if it starts with
		1807	# something that looks reasonable
		1808	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1809	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1810
		1811	$base =~ s{[^/]+/?$}{};
		1812	$path = "$base/$path";
		1813	}
		1814
		1815	for ($path) {
		1816	redo if s{//}{/};
		1817	redo if s{/\.?/}{/};
		1818	redo if s{/[^/]+/\.\./}{/};
		1819	}
		1820
		1821	$path
		1822	}
		1823
		1824	sub new_from_path {
		1825	my (undef, $path, $base) = @_;
		1826
		1827	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1828
		1829	$path = normalise $path, $base;
		1830
		1831	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1832	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1833	my $self = bless cf::map::new, $pkg;
		1834	$self->{path} = $path; $self->path ($path);
		1835	$self->init; # pass $1 etc.
		1836	return $self;
		1837	}
		1838	}
		1839
		1840	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1841	()
		1842	}
		1843
		1844	sub init {
		1845	my ($self) = @_;
		1846
		1847	$self
		1848	}
		1849
		1850	sub as_string {
		1851	my ($self) = @_;
		1852
		1853	"$self->{path}"
		1854	}
		1855
		1856	# the displayed name, this is a one way mapping
		1857	sub visible_name {
		1858	&as_string
		1859	}
		1860
		1861	# the original (read-only) location
		1862	sub load_path {
		1863	my ($self) = @_;
		1864
		1865	"$MAPDIR/$self->{path}.map"
		1866	}
		1867
		1868	# the temporary/swap location
		1869	sub save_path {
		1870	my ($self) = @_;
		1871
		1872	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1873	"$TMPDIR/$path.map"
		1874	}
		1875
		1876	# the unique path, undef == no special unique path
		1877	sub uniq_path {
		1878	my ($self) = @_;
		1879
		1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1881	"$UNIQUEDIR/$path"
1130	}	1882	}
1131		1883
1132	# and all this just because we cannot iterate over	1884	# and all this just because we cannot iterate over
1133	# all maps in C++...	1885	# all maps in C++...
1134	sub change_all_map_light {	1886	sub change_all_map_light {
…		…
1136		1888
1137	$_->change_map_light ($change)	1889	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1890	for grep $_->outdoor, values %cf::MAP;
1139	}	1891	}
1140		1892
		1893	sub decay_objects {
		1894	my ($self) = @_;
		1895
		1896	return if $self->{deny_reset};
		1897
		1898	$self->do_decay_objects;
		1899	}
		1900
		1901	sub unlink_save {
		1902	my ($self) = @_;
		1903
		1904	utf8::encode (my $save = $self->save_path);
		1905	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1907	}
		1908
1141	sub try_load_header($) {	1909	sub load_header_from($) {
1142	my ($path) = @_;	1910	my ($self, $path) = @_;
1143		1911
1144	utf8::encode $path;	1912	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1913	my $f = new_from_file cf::object::thawer $path
1146	or return;	1914	or return;
1147		1915
1148	my $map = cf::map::new	1916	$self->_load_header ($f)
1149	or return;	1917	or return;
1150		1918
1151	# for better error messages only, will be overwritten	1919	local $MAP_LOADING{$self->{path}} = $self;
1152	$map->path ($path);	1920	$f->resolve_delayed_derefs;
1153		1921
1154	$map->load_header ($path)	1922	$self->{load_path} = $path;
		1923
		1924	1
		1925	}
		1926
		1927	sub load_header_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->load_path)
		1931	}
		1932
		1933	sub load_header_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->load_header_from ($self->save_path)
		1937	}
		1938
		1939	sub prepare_temp {
		1940	my ($self) = @_;
		1941
		1942	$self->last_access ((delete $self->{last_access})
		1943	|| $cf::RUNTIME); #d#
		1944	# safety
		1945	$self->{instantiate_time} = $cf::RUNTIME
		1946	if $self->{instantiate_time} > $cf::RUNTIME;
		1947	}
		1948
		1949	sub prepare_orig {
		1950	my ($self) = @_;
		1951
		1952	$self->{load_original} = 1;
		1953	$self->{instantiate_time} = $cf::RUNTIME;
		1954	$self->last_access ($cf::RUNTIME);
		1955	$self->instantiate;
		1956	}
		1957
		1958	sub load_header {
		1959	my ($self) = @_;
		1960
		1961	if ($self->load_header_temp) {
		1962	$self->prepare_temp;
		1963	} else {
		1964	$self->load_header_orig
1155	or return;	1965	or return;
		1966	$self->prepare_orig;
		1967	}
1156		1968
1157	$map->{load_path} = $path;	1969	$self->{deny_reset} = 1
		1970	if $self->no_reset;
1158		1971
1159	$map	1972	$self->default_region (cf::region::find_by_path $self->{path})
		1973	unless $self->default_region;
		1974
		1975	1
1160	}	1976	}
1161		1977
1162	sub find;	1978	sub find;
1163	sub find {	1979	sub find {
1164	my ($path, $origin) = @_;	1980	my ($path, $origin) = @_;
1165		1981
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1982	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1983
		1984	cf::lock_wait "map_data:$path";#d#remove
1171	cf::lock_wait "map_find:$key";	1985	cf::lock_wait "map_find:$path";
1172		1986
1173	$cf::MAP{$key} || do {	1987	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1988	my $guard1 = cf::lock_acquire "map_find:$path";
		1989	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1175		1990
1176	# do it the slow way	1991	my $map = new_from_path cf::map $path
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1992	or return;
1195		1993
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1994	$map->{last_save} = $cf::RUNTIME;
1208		1995
1209	Coro::cede;	1996	$map->load_header
		1997	or return;
1210		1998
1211	if ($map->should_reset) {	1999	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2000	# doing this can freeze the server in a sync job, obviously
		2001	#$cf::WAIT_FOR_TICK->wait;
		2002	undef $guard1;
		2003	undef $guard2;
1212	$map->reset;	2004	$map->reset;
1213	undef $guard;
1214	$map = find $path	2005	return find $path;
1215	or return;
1216	}	2006	}
1217		2007
1218	$cf::MAP{$key} = $map	2008	$cf::MAP{$path} = $map
1219	}	2009	}
1220	}	2010	}
		2011
		2012	sub pre_load { }
		2013	sub post_load { }
1221		2014
1222	sub load {	2015	sub load {
1223	my ($self) = @_;	2016	my ($self) = @_;
1224		2017
		2018	local $self->{deny_reset} = 1; # loading can take a long time
		2019
1225	my $path = $self->{path};	2020	my $path = $self->{path};
		2021
		2022	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2023	my $guard = cf::lock_acquire "map_data:$path";
1227		2024
		2025	return unless $self->valid;
1228	return if $self->in_memory != cf::MAP_SWAPPED;	2026	return unless $self->in_memory == cf::MAP_SWAPPED;
1229		2027
1230	$self->in_memory (cf::MAP_LOADING);	2028	$self->in_memory (cf::MAP_LOADING);
1231		2029
1232	$self->alloc;	2030	$self->alloc;
1233	$self->load_objects ($self->{load_path}, 1)	2031
		2032	$self->pre_load;
		2033	cf::cede_to_tick;
		2034
		2035	my $f = new_from_file cf::object::thawer $self->{load_path};
		2036	$f->skip_block;
		2037	$self->_load_objects ($f)
1234	or return;	2038	or return;
1235		2039
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2040	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	2041	if delete $self->{load_original};
1238		2042
1239	if (my $uniq = $path->uniq_path) {	2043	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	2044	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	2045	unless (aio_stat $uniq) {
		2046	if (my $f = new_from_file cf::object::thawer $uniq) {
1242	$self->clear_unique_items;	2047	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	2048	$self->_load_objects ($f);
		2049	$f->resolve_delayed_derefs;
		2050	}
1244	}	2051	}
1245	}	2052	}
1246		2053
1247	Coro::cede;	2054	$f->resolve_delayed_derefs;
1248		2055
		2056	cf::cede_to_tick;
1249	# now do the right thing for maps	2057	# now do the right thing for maps
1250	$self->link_multipart_objects;	2058	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	2059	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	2060	unless $self->difficulty;
		2061	cf::cede_to_tick;
		2062
		2063	unless ($self->{deny_activate}) {
		2064	$self->decay_objects;
		2065	$self->fix_auto_apply;
		2066	$self->update_buttons;
		2067	cf::cede_to_tick;
		2068	$self->set_darkness_map;
		2069	cf::cede_to_tick;
1262	$self->activate;	2070	$self->activate;
1263	}	2071	}
1264		2072
1265	Coro::cede;	2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
1266		2075
1267	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_IN_MEMORY);
		2077	}
		2078
		2079	$self->post_load;
		2080	}
		2081
		2082	sub customise_for {
		2083	my ($self, $ob) = @_;
		2084
		2085	return find "~" . $ob->name . "/" . $self->{path}
		2086	if $self->per_player;
		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
		2091	$self
		2092	}
		2093
		2094	# find and load all maps in the 3x3 area around a map
		2095	sub load_neighbours {
		2096	my ($map) = @_;
		2097
		2098	my @neigh; # diagonal neighbours
		2099
		2100	for (0 .. 3) {
		2101	my $neigh = $map->tile_path ($_)
		2102	or next;
		2103	$neigh = find $neigh, $map
		2104	or next;
		2105	$neigh->load;
		2106
		2107	push @neigh,
		2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2110	}
		2111
		2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
		2114	my $neigh = find $path, $origin
		2115	or next;
		2116	$neigh->load;
		2117	}
1268	}	2118	}
1269		2119
1270	sub find_sync {	2120	sub find_sync {
1271	my ($path, $origin) = @_;	2121	my ($path, $origin) = @_;
1272		2122
1273	cf::sync_job { cf::map::find $path, $origin }	2123	cf::sync_job { find $path, $origin }
1274	}	2124	}
1275		2125
1276	sub do_load_sync {	2126	sub do_load_sync {
1277	my ($map) = @_;	2127	my ($map) = @_;
1278		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1279	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
		2133	}
		2134
		2135	our %MAP_PREFETCH;
		2136	our $MAP_PREFETCHER = undef;
		2137
		2138	sub find_async {
		2139	my ($path, $origin, $load) = @_;
		2140
		2141	$path = normalise $path, $origin && $origin->{path};
		2142
		2143	if (my $map = $cf::MAP{$path}) {
		2144	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
		2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
		2152	while (%MAP_PREFETCH) {
		2153	while (my ($k, $v) = each %MAP_PREFETCH) {
		2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
		2158	delete $MAP_PREFETCH{$k};
		2159	}
		2160	}
		2161	undef $MAP_PREFETCHER;
		2162	};
		2163	$MAP_PREFETCHER->prio (6);
		2164
		2165	()
1280	}	2166	}
1281		2167
1282	sub save {	2168	sub save {
1283	my ($self) = @_;	2169	my ($self) = @_;
1284		2170
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1286		2172
1287	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1288		2174
1289	return unless $self->dirty;	2175	return unless $self->dirty;
1290		2176
1291	my $save = $self->{path}->save_path; utf8::encode $save;	2177	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		2179
1294	$self->{load_path} = $save;	2180	$self->{load_path} = $save;
1295		2181
1296	return if $self->{deny_save};	2182	return if $self->{deny_save};
1297		2183
1298	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1299		2185
		2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
		2188	$_->contr->save for $self->players;
		2189	};
		2190
1300	if ($uniq) {	2191	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2192	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	2193	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	2194	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	2196	}
1306	}	2197	}
1307		2198
1308	sub swap_out {	2199	sub swap_out {
1309	my ($self) = @_;	2200	my ($self) = @_;
1310		2201
1311	# save first because save cedes	2202	# save first because save cedes
1312	$self->save;	2203	$self->save;
1313		2204
1314	my $lock = cf::lock_acquire "map_data:" . $self->path;	2205	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2206
1316	return if $self->players;	2207	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	2208	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	2209	return if $self->{deny_save};
1319		2210
		2211	$self->in_memory (cf::MAP_SWAPPED);
		2212
		2213	$self->deactivate;
		2214	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2215	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2216	}
1323		2217
1324	sub reset_at {	2218	sub reset_at {
1325	my ($self) = @_;	2219	my ($self) = @_;
1326		2220
1327	# TODO: safety, remove and allow resettable per-player maps	2221	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2222	return 1e99 if $self->{deny_reset};
1330		2223
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2224	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2225	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2226
…		…
1338	my ($self) = @_;	2231	my ($self) = @_;
1339		2232
1340	$self->reset_at <= $cf::RUNTIME	2233	$self->reset_at <= $cf::RUNTIME
1341	}	2234	}
1342		2235
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2236	sub reset {
1365	my ($self) = @_;	2237	my ($self) = @_;
1366		2238
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2239	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2240
1369	return if $self->players;	2241	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2242
1372	warn "resetting map ", $self->path;#d#	2243	warn "resetting map ", $self->path;
		2244
		2245	$self->in_memory (cf::MAP_SWAPPED);
		2246
		2247	# need to save uniques path
		2248	unless ($self->{deny_save}) {
		2249	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2250
		2251	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2252	if $uniq;
		2253	}
1373		2254
1374	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1375		2256
		2257	$self->deactivate;
1376	$_->clear_links_to ($self) for values %cf::MAP;	2258	$_->clear_links_to ($self) for values %cf::MAP;
		2259	$self->clear;
1377		2260
1378	$self->unlink_save;	2261	$self->unlink_save;
1379	$self->destroy;	2262	$self->destroy;
1380	}	2263	}
1381		2264
1382	my $nuke_counter = "aaaa";	2265	my $nuke_counter = "aaaa";
1383		2266
1384	sub nuke {	2267	sub nuke {
1385	my ($self) = @_;	2268	my ($self) = @_;
1386		2269
		2270	{
		2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2272
		2273	delete $cf::MAP{$self->path};
		2274
		2275	$self->unlink_save;
		2276
		2277	bless $self, "cf::map";
		2278	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2279	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2280	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2281	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2282
		2283	$cf::MAP{$self->path} = $self;
		2284	}
		2285
1390	$self->reset; # polite request, might not happen	2286	$self->reset; # polite request, might not happen
1391	}	2287	}
1392		2288
1393	sub customise_for {	2289	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2290
1396	if ($map->per_player) {	2291	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2292	maps. May block.
		2293
		2294	=cut
		2295
		2296	sub tmp_maps() {
1398	}	2297	[
1399		2298	map {
1400	$map	2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise $_
		2302	: ()
		2303	} @{ aio_readdir $TMPDIR or [] }
		2304	]
1401	}	2305	}
1402		2306
1403	sub emergency_save {	2307	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2308
1406	warn "enter emergency map save\n";	2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	random maps. May block.
1407		2311
1408	cf::sync_job {	2312	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2313
1413	warn "end emergency map save\n";	2314	sub random_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise "?random/$_"
		2320	: ()
		2321	} @{ aio_readdir $RANDOMDIR or [] }
		2322	]
		2323	}
		2324
		2325	=item cf::map::unique_maps
		2326
		2327	Returns an arrayref of paths of all shared maps that have
		2328	instantiated unique items. May block.
		2329
		2330	=cut
		2331
		2332	sub unique_maps() {
		2333	[
		2334	map {
		2335	utf8::decode $_;
		2336	/\.map$/
		2337	? normalise $_
		2338	: ()
		2339	} @{ aio_readdir $UNIQUEDIR or [] }
		2340	]
1414	}	2341	}
1415		2342
1416	package cf;	2343	package cf;
1417		2344
1418	=back	2345	=back
1419		2346
		2347	=head3 cf::object
		2348
		2349	=cut
		2350
		2351	package cf::object;
		2352
		2353	=over 4
		2354
		2355	=item $ob->inv_recursive
		2356
		2357	Returns the inventory of the object _and_ their inventories, recursively.
		2358
		2359	=cut
		2360
		2361	sub inv_recursive_;
		2362	sub inv_recursive_ {
		2363	map { $_, inv_recursive_ $_->inv } @_
		2364	}
		2365
		2366	sub inv_recursive {
		2367	inv_recursive_ inv $_[0]
		2368	}
		2369
		2370	=item $ref = $ob->ref
		2371
		2372	creates and returns a persistent reference to an objetc that can be stored as a string.
		2373
		2374	=item $ob = cf::object::deref ($refstring)
		2375
		2376	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2377	even if the object actually exists. May block.
		2378
		2379	=cut
		2380
		2381	sub deref {
		2382	my ($ref) = @_;
		2383
		2384	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2385	my ($uuid, $name) = ($1, $2);
		2386	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2387	or return;
		2388	$pl->ob->uuid eq $uuid
		2389	or return;
		2390
		2391	$pl->ob
		2392	} else {
		2393	warn "$ref: cannot resolve object reference\n";
		2394	undef
		2395	}
		2396	}
		2397
		2398	package cf;
		2399
		2400	=back
1420		2401
1421	=head3 cf::object::player	2402	=head3 cf::object::player
1422		2403
1423	=over 4	2404	=over 4
1424		2405
…		…
1438		2419
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2420	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2421
1441	if ($self->{record_replies}) {	2422	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2423	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2424
1443	} else {	2425	} else {
		2426	my $pl = $self->contr;
		2427
		2428	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2429	my $dialog = $pl->{npc_dialog};
		2430	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2431
		2432	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2433	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2434	$self->message ($msg, $flags);
		2435	}
1446	}	2436	}
		2437	}
		2438
		2439	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2440
		2441	=cut
		2442
		2443	sub cf::object::send_msg {
		2444	my $pl = shift->contr
		2445	or return;
		2446	$pl->send_msg (@_);
1447	}	2447	}
1448		2448
1449	=item $player_object->may ("access")	2449	=item $player_object->may ("access")
1450		2450
1451	Returns wether the given player is authorized to access resource "access"	2451	Returns wether the given player is authorized to access resource "access"
…		…
1464		2464
1465	=item $player_object->enter_link	2465	=item $player_object->enter_link
1466		2466
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2467	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2468
1469	The player should be reaosnably safe there for short amounts of time. You	2469	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2470	I<MUST> call C<leave_link> as soon as possible, though.
1471		2471
		2472	Will never block.
		2473
1472	=item $player_object->leave_link ($map, $x, $y)	2474	=item $player_object->leave_link ($map, $x, $y)
1473		2475
1474	Moves the player out of the specila link map onto the given map. If the	2476	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2477	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2478	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2479	fails, to the emergency map position.
1478		2480
1479	Might block.	2481	Might block.
1480		2482
1481	=cut	2483	=cut
		2484
		2485	sub link_map {
		2486	unless ($LINK_MAP) {
		2487	$LINK_MAP = cf::map::find "{link}"
		2488	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2489	$LINK_MAP->load;
		2490	}
		2491
		2492	$LINK_MAP
		2493	}
1482		2494
1483	sub cf::object::player::enter_link {	2495	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2496	my ($self) = @_;
1485		2497
1486	$self->deactivate_recursive;	2498	$self->deactivate_recursive;
1487		2499
1488	return if $self->map == $LINK_MAP;	2500	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2501
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2503	if $self->map && $self->map->{path} ne "{link}";
1492		2504
1493	$self->enter_map ($LINK_MAP, 20, 20);	2505	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2506	}
1495		2507
1496	sub cf::object::player::leave_link {	2508	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2509	my ($self, $map, $x, $y) = @_;
		2510
		2511	return unless $self->contr->active;
1498		2512
1499	my $link_pos = delete $self->{_link_pos};	2513	my $link_pos = delete $self->{_link_pos};
1500		2514
1501	unless ($map) {	2515	unless ($map) {
1502	# restore original map position	2516	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2530	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2531	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2532	if $x <=0 && $y <= 0;
1519		2533
1520	$map->load;	2534	$map->load;
		2535	$map->load_neighbours;
1521		2536
		2537	return unless $self->contr->active;
1522	$self->activate_recursive;	2538	$self->activate_recursive;
		2539
		2540	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2541	$self->enter_map ($map, $x, $y);
1524	}	2542	}
1525		2543
1526	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1527	on_logout => sub {
1528	my ($pl) = @_;
1529		2545
1530	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1531	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1532	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1533	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1534	};	2550	be called at the end of this process.
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2551
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)
1555
1556	=cut	2552	=cut
		2553
		2554	our $GOTOGEN;
1557		2555
1558	sub cf::object::player::goto {	2556	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2557	my ($self, $path, $x, $y, $check, $done) = @_;
		2558
		2559	# do generation counting so two concurrent goto's will be executed in-order
		2560	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2561
1561	$self->enter_link;	2562	$self->enter_link;
1562		2563
1563	(Coro::async_pool {	2564	(async {
1564	$path = new cf::path $path;	2565	$Coro::current->{desc} = "player::goto $path $x $y";
1565		2566
1566	my $map = cf::map::find $path->as_string;	2567	# *tag paths override both path and x|y
		2568	if ($path =~ /^\*(.*)$/) {
		2569	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2570	my $ob = $obs[rand @obs];
		2571
		2572	# see if we actually can go there
		2573	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2574	$ob = $obs[rand @obs];
		2575	} else {
		2576	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2577	}
		2578	# else put us there anyways for now #d#
		2579
		2580	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2581	} else {
		2582	($path, $x, $y) = (undef, undef, undef);
		2583	}
		2584	}
		2585
		2586	my $map = eval {
		2587	my $map = defined $path ? cf::map::find $path : undef;
		2588
		2589	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2590	$map = $map->customise_for ($self);
1568		2591	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2592	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2593	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	}
1573		2595
		2596	$map
		2597	};
		2598
		2599	if ($@) {
		2600	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2601	LOG llevError | logBacktrace, Carp::longmess $@;
		2602	}
		2603
		2604	if ($gen == $self->{_goto_generation}) {
		2605	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2606	$self->leave_link ($map, $x, $y);
		2607	}
		2608
		2609	$done->() if $done;
1575	})->prio (1);	2610	})->prio (1);
1576	}	2611	}
1577		2612
1578	=item $player_object->enter_exit ($exit_object)	2613	=item $player_object->enter_exit ($exit_object)
1579		2614
…		…
1581		2616
1582	sub parse_random_map_params {	2617	sub parse_random_map_params {
1583	my ($spec) = @_;	2618	my ($spec) = @_;
1584		2619
1585	my $rmp = { # defaults	2620	my $rmp = { # defaults
1586	xsize => 10,	2621	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2622	ysize => (cf::rndm 15, 40),
		2623	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2624	#layout => string,
1588	};	2625	};
1589		2626
1590	for (split /\n/, $spec) {	2627	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2628	my ($k, $v) = split /\s+/, $_, 2;
1592		2629
…		…
1596	$rmp	2633	$rmp
1597	}	2634	}
1598		2635
1599	sub prepare_random_map {	2636	sub prepare_random_map {
1600	my ($exit) = @_;	2637	my ($exit) = @_;
		2638
		2639	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2640
1602	# all this does is basically replace the /! path by	2641	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2642	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2643	# that depends on the exit object
1605		2644
1606	my $rmp = parse_random_map_params $exit->msg;	2645	my $rmp = parse_random_map_params $exit->msg;
1607		2646
1608	if ($exit->map) {	2647	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2648	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2649	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2650	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2651	$rmp->{origin_y} = $exit->y;
1613	}	2652	}
1614		2653
1615	$rmp->{random_seed} ||= $exit->random_seed;	2654	$rmp->{random_seed} ||= $exit->random_seed;
1616		2655
1617	my $data = cf::to_json $rmp;	2656	my $data = cf::encode_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2657	my $md5 = Digest::MD5::md5_hex $data;
		2658	my $meta = "$RANDOMDIR/$md5.meta";
1619		2659
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2660	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2661	aio_write $fh, 0, (length $data), $data, 0;
		2662	undef $fh;
		2663	aio_rename "$meta~", $meta;
1622		2664
1623	$exit->slaying ("?random/$md5");	2665	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2666	$exit->msg (undef);
1625	}	2667	}
1626	}	2668	}
…		…
1628	sub cf::object::player::enter_exit {	2670	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2671	my ($self, $exit) = @_;
1630		2672
1631	return unless $self->type == cf::PLAYER;	2673	return unless $self->type == cf::PLAYER;
1632		2674
		2675	if ($exit->slaying eq "/!") {
		2676	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2677	# the problem is that $exit might not survive long enough
		2678	# so it needs to be done right now, right here
		2679	cf::sync_job { prepare_random_map $exit };
		2680	}
		2681
		2682	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2683	my $hp = $exit->stats->hp;
		2684	my $sp = $exit->stats->sp;
		2685
1633	$self->enter_link;	2686	$self->enter_link;
1634		2687
1635	(Coro::async_pool {	2688	# if exit is damned, update players death & WoR home-position
		2689	$self->contr->savebed ($slaying, $hp, $sp)
		2690	if $exit->flag (FLAG_DAMNED);
		2691
		2692	(async {
		2693	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2694
1636	$self->deactivate_recursive; # just to be sure	2695	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2696	unless (eval {
1638	prepare_random_map $exit	2697	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2698
1644	1;	2699	1;
1645	}) {	2700	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2701	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2702	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2703	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2704	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2705
1651	warn "ERROR in enter_exit: $@";	2706	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2707	$self->leave_link;
1653	}	2708	}
1654	})->prio (1);	2709	})->prio (1);
…		…
1667		2722
1668	sub cf::client::send_drawinfo {	2723	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2724	my ($self, $text, $flags) = @_;
1670		2725
1671	utf8::encode $text;	2726	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2727	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2728	}
1674		2729
		2730	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2731
		2732	Send a drawinfo or msg packet to the client, formatting the msg for the
		2733	client if neccessary. C<$type> should be a string identifying the type of
		2734	the message, with C<log> being the default. If C<$color> is negative, suppress
		2735	the message unless the client supports the msg packet.
		2736
		2737	=cut
		2738
		2739	# non-persistent channels (usually the info channel)
		2740	our %CHANNEL = (
		2741	"c/identify" => {
		2742	id => "infobox",
		2743	title => "Identify",
		2744	reply => undef,
		2745	tooltip => "Items recently identified",
		2746	},
		2747	"c/examine" => {
		2748	id => "infobox",
		2749	title => "Examine",
		2750	reply => undef,
		2751	tooltip => "Signs and other items you examined",
		2752	},
		2753	"c/book" => {
		2754	id => "infobox",
		2755	title => "Book",
		2756	reply => undef,
		2757	tooltip => "The contents of a note or book",
		2758	},
		2759	"c/lookat" => {
		2760	id => "infobox",
		2761	title => "Look",
		2762	reply => undef,
		2763	tooltip => "What you saw there",
		2764	},
		2765	"c/who" => {
		2766	id => "infobox",
		2767	title => "Players",
		2768	reply => undef,
		2769	tooltip => "Shows players who are currently online",
		2770	},
		2771	"c/body" => {
		2772	id => "infobox",
		2773	title => "Body Parts",
		2774	reply => undef,
		2775	tooltip => "Shows which body parts you posess and are available",
		2776	},
		2777	"c/uptime" => {
		2778	id => "infobox",
		2779	title => "Uptime",
		2780	reply => undef,
		2781	tooltip => "How long the server has been running since last restart",
		2782	},
		2783	"c/mapinfo" => {
		2784	id => "infobox",
		2785	title => "Map Info",
		2786	reply => undef,
		2787	tooltip => "Information related to the maps",
		2788	},
		2789	);
		2790
		2791	sub cf::client::send_msg {
		2792	my ($self, $channel, $msg, $color, @extra) = @_;
		2793
		2794	$msg = $self->pl->expand_cfpod ($msg);
		2795
		2796	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2797
		2798	# check predefined channels, for the benefit of C
		2799	if ($CHANNEL{$channel}) {
		2800	$channel = $CHANNEL{$channel};
		2801
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804
		2805	$channel = $channel->{id};
		2806
		2807	} elsif (ref $channel) {
		2808	# send meta info to client, if not yet sent
		2809	unless (exists $self->{channel}{$channel->{id}}) {
		2810	$self->{channel}{$channel->{id}} = $channel;
		2811	$self->ext_msg (channel_info => $channel)
		2812	if $self->can_msg;
		2813	}
		2814
		2815	$channel = $channel->{id};
		2816	}
		2817
		2818	return unless @extra || length $msg;
		2819
		2820	if ($self->can_msg) {
		2821	# default colour, mask it out
		2822	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2823	if $color & cf::NDI_DEF;
		2824
		2825	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2826	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2827	} else {
		2828	if ($color >= 0) {
		2829	# replace some tags by gcfclient-compatible ones
		2830	for ($msg) {
		2831	1 while
		2832	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2833	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2834	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2835	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2836	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2837	}
		2838
		2839	$color &= cf::NDI_COLOR_MASK;
		2840
		2841	utf8::encode $msg;
		2842
		2843	if (0 && $msg =~ /\[/) {
		2844	# COMMAND/INFO
		2845	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2846	} else {
		2847	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2848	$self->send_packet ("drawinfo $color $msg")
		2849	}
		2850	}
		2851	}
		2852	}
		2853
		2854	=item $client->ext_msg ($type, @msg)
		2855
		2856	Sends an ext event to the client.
		2857
		2858	=cut
		2859
		2860	sub cf::client::ext_msg($$@) {
		2861	my ($self, $type, @msg) = @_;
		2862
		2863	if ($self->extcmd == 2) {
		2864	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2865	} elsif ($self->extcmd == 1) { # TODO: remove
		2866	push @msg, msgtype => "event_$type";
		2867	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2868	}
		2869	}
		2870
		2871	=item $client->ext_reply ($msgid, @msg)
		2872
		2873	Sends an ext reply to the client.
		2874
		2875	=cut
		2876
		2877	sub cf::client::ext_reply($$@) {
		2878	my ($self, $id, @msg) = @_;
		2879
		2880	if ($self->extcmd == 2) {
		2881	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2882	} elsif ($self->extcmd == 1) {
		2883	#TODO: version 1, remove
		2884	unshift @msg, msgtype => "reply", msgid => $id;
		2885	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2886	}
		2887	}
1675		2888
1676	=item $success = $client->query ($flags, "text", \&cb)	2889	=item $success = $client->query ($flags, "text", \&cb)
1677		2890
1678	Queues a query to the client, calling the given callback with	2891	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2892	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2893	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2894
1682	Queries can fail, so check the return code. Or don't, as queries will become	2895	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2896	become reliable at some point in the future.
1684		2897
1685	=cut	2898	=cut
1686		2899
1687	sub cf::client::query {	2900	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2901	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2909	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2910	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2911
1699	$self->send_packet ($self->{query_queue}[0][0])	2912	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2913	if @{ $self->{query_queue} } == 1;
		2914
		2915	1
1701	}	2916	}
1702		2917
1703	cf::client->attach (	2918	cf::client->attach (
		2919	on_connect => sub {
		2920	my ($ns) = @_;
		2921
		2922	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2923	},
1704	on_reply => sub {	2924	on_reply => sub {
1705	my ($ns, $msg) = @_;	2925	my ($ns, $msg) = @_;
1706		2926
1707	# this weird shuffling is so that direct followup queries	2927	# this weird shuffling is so that direct followup queries
1708	# get handled first	2928	# get handled first
1709	my $queue = delete $ns->{query_queue}	2929	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2930	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2931
1712	(shift @$queue)->[1]->($msg);	2932	(shift @$queue)->[1]->($msg);
		2933	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2934
1714	push @{ $ns->{query_queue} }, @$queue;	2935	push @{ $ns->{query_queue} }, @$queue;
1715		2936
1716	if (@{ $ns->{query_queue} } == @$queue) {	2937	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2938	if (@$queue) {
…		…
1719	} else {	2940	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2941	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2942	}
1722	}	2943	}
1723	},	2944	},
		2945	on_exticmd => sub {
		2946	my ($ns, $buf) = @_;
		2947
		2948	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2949
		2950	if (ref $msg) {
		2951	my ($type, $reply, @payload) =
		2952	"ARRAY" eq ref $msg
		2953	? @$msg
		2954	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2955
		2956	my @reply;
		2957
		2958	if (my $cb = $EXTICMD{$type}) {
		2959	@reply = $cb->($ns, @payload);
		2960	}
		2961
		2962	$ns->ext_reply ($reply, @reply)
		2963	if $reply;
		2964
		2965	} else {
		2966	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2967	}
		2968
		2969	cf::override;
		2970	},
1724	);	2971	);
1725		2972
1726	=item $client->coro (\&cb)	2973	=item $client->async (\&cb)
1727		2974
1728	Create a new coroutine, running the specified callback. The coroutine will	2975	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2976	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2977	or loss of connection).
1731		2978
1732	=cut	2979	=cut
1733		2980
1734	sub cf::client::coro {	2981	sub cf::client::async {
1735	my ($self, $cb) = @_;	2982	my ($self, $cb) = @_;
1736		2983
1737	my $coro = &Coro::async_pool ($cb);	2984	my $coro = &Coro::async ($cb);
1738		2985
1739	$coro->on_destroy (sub {	2986	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2987	delete $self->{_coro}{$coro+0};
1741	});	2988	});
1742		2989
…		…
1769	our $safe = new Safe "safe";	3016	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	3017	our $safe_hole = new Safe::Hole;
1771		3018
1772	$SIG{FPE} = 'IGNORE';	3019	$SIG{FPE} = 'IGNORE';
1773		3020
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3021	$safe->permit_only (Opcode::opset qw(
		3022	:base_core :base_mem :base_orig :base_math
		3023	grepstart grepwhile mapstart mapwhile
		3024	sort time
		3025	));
1775		3026
1776	# here we export the classes and methods available to script code	3027	# here we export the classes and methods available to script code
1777		3028
1778	=pod	3029	=pod
1779		3030
1780	The following fucntions and emthods are available within a safe environment:	3031	The following functions and methods are available within a safe environment:
1781		3032
1782	cf::object contr pay_amount pay_player map	3033	cf::object
		3034	contr pay_amount pay_player map x y force_find force_add destroy
		3035	insert remove name archname title slaying race decrease_ob_nr
		3036
1783	cf::object::player player	3037	cf::object::player
1784	cf::player peaceful	3038	player
1785	cf::map trigger	3039
		3040	cf::player
		3041	peaceful
		3042
		3043	cf::map
		3044	trigger
1786		3045
1787	=cut	3046	=cut
1788		3047
1789	for (	3048	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	3049	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3050	insert remove inv name archname title slaying race
		3051	decrease_ob_nr destroy)],
1791	["cf::object::player" => qw(player)],	3052	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	3053	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	3054	["cf::map" => qw(trigger)],
1794	) {	3055	) {
1795	no strict 'refs';	3056	no strict 'refs';
…		…
1866	=back	3127	=back
1867		3128
1868	=cut	3129	=cut
1869		3130
1870	#############################################################################	3131	#############################################################################
		3132	# the server's init and main functions
1871		3133
1872	=head2 EXTENSION DATABASE SUPPORT	3134	sub load_facedata($) {
		3135	my ($path) = @_;
1873		3136
1874	Crossfire maintains a very simple database for extension use. It can	3137	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3138	# for this (global event?)
1876	excludes objects.	3139	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3140
1878	The parameter C<$family> should best start with the name of the extension	3141	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3142
1881	=over 4	3143	warn "loading facedata from $path\n";
1882		3144
1883	=item $hashref = cf::db_get $family	3145	my $facedata;
		3146	0 < aio_load $path, $facedata
		3147	or die "$path: $!";
1884		3148
1885	Return a hashref for use by the extension C<$family>, which can be	3149	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3150
1889	=item $value = cf::db_get $family => $key	3151	$facedata->{version} == 2
		3152	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3153
1891	Returns a single value from the database	3154	# patch in the exptable
1892		3155	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	3156	type => FT_RSRC,
1894		3157	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	3158	};
		3159	cf::cede_to_tick;
1944		3160
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	3161	{
		3162	my $faces = $facedata->{faceinfo};
1949		3163
1950	sub db_get($;$) {	3164	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	3165	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		3166
1956	sub db_put($$;$) {	3167	cf::face::set_visibility $idx, $info->{visibility};
1957	if (@_ >= 3) {	3168	cf::face::set_magicmap $idx, $info->{magicmap};
1958	$DB->{$_[0]}{$_[1]} = $_[2];	3169	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1959	} else {	3170	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		3171
1965	cf::global->attach (	3172	cf::cede_to_tick;
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	3173	}
1970	);
1971	}
1972		3174
1973	#############################################################################	3175	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	3176	next unless $info->{smooth};
1975		3177
1976	sub cfg_load {	3178	my $idx = cf::face::find $face
		3179	or next;
		3180
		3181	if (my $smooth = cf::face::find $info->{smooth}) {
		3182	cf::face::set_smooth $idx, $smooth;
		3183	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3184	} else {
		3185	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3186	}
		3187
		3188	cf::cede_to_tick;
		3189	}
		3190	}
		3191
		3192	{
		3193	my $anims = $facedata->{animinfo};
		3194
		3195	while (my ($anim, $info) = each %$anims) {
		3196	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3197	cf::cede_to_tick;
		3198	}
		3199
		3200	cf::anim::invalidate_all; # d'oh
		3201	}
		3202
		3203	{
		3204	# TODO: for gcfclient pleasure, we should give resources
		3205	# that gcfclient doesn't grok a >10000 face index.
		3206	my $res = $facedata->{resource};
		3207
		3208	while (my ($name, $info) = each %$res) {
		3209	if (defined $info->{type}) {
		3210	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3211	my $data;
		3212
		3213	if ($info->{type} & 1) {
		3214	# prepend meta info
		3215
		3216	my $meta = $enc->encode ({
		3217	name => $name,
		3218	%{ $info->{meta} || {} },
		3219	});
		3220
		3221	$data = pack "(w/a*)*", $meta, $info->{data};
		3222	} else {
		3223	$data = $info->{data};
		3224	}
		3225
		3226	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3227	cf::face::set_type $idx, $info->{type};
		3228	} else {
		3229	$RESOURCE{$name} = $info;
		3230	}
		3231
		3232	cf::cede_to_tick;
		3233	}
		3234	}
		3235
		3236	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3237
		3238	1
		3239	}
		3240
		3241	cf::global->attach (on_resource_update => sub {
		3242	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3243	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3244
		3245	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3246	my $sound = $soundconf->{compat}[$_]
		3247	or next;
		3248
		3249	my $face = cf::face::find "sound/$sound->[1]";
		3250	cf::sound::set $sound->[0] => $face;
		3251	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3252	}
		3253
		3254	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3255	my $face = cf::face::find "sound/$v";
		3256	cf::sound::set $k => $face;
		3257	}
		3258	}
		3259	});
		3260
		3261	register_exticmd fx_want => sub {
		3262	my ($ns, $want) = @_;
		3263
		3264	while (my ($k, $v) = each %$want) {
		3265	$ns->fx_want ($k, $v);
		3266	}
		3267	};
		3268
		3269	sub reload_regions {
		3270	# HACK to clear player env face cache, we need some signal framework
		3271	# for this (global event?)
		3272	%ext::player_env::MUSIC_FACE_CACHE = ();
		3273
		3274	load_resource_file "$MAPDIR/regions"
		3275	or die "unable to load regions file\n";
		3276
		3277	for (cf::region::list) {
		3278	$_->{match} = qr/$_->{match}/
		3279	if exists $_->{match};
		3280	}
		3281	}
		3282
		3283	sub reload_facedata {
		3284	load_facedata "$DATADIR/facedata"
		3285	or die "unable to load facedata\n";
		3286	}
		3287
		3288	sub reload_archetypes {
		3289	load_resource_file "$DATADIR/archetypes"
		3290	or die "unable to load archetypes\n";
		3291	#d# NEED to laod twice to resolve forward references
		3292	# this really needs to be done in an extra post-pass
		3293	# (which needs to be synchronous, so solve it differently)
		3294	load_resource_file "$DATADIR/archetypes"
		3295	or die "unable to load archetypes\n";
		3296	}
		3297
		3298	sub reload_treasures {
		3299	load_resource_file "$DATADIR/treasures"
		3300	or die "unable to load treasurelists\n";
		3301	}
		3302
		3303	sub reload_resources {
		3304	warn "reloading resource files...\n";
		3305
		3306	reload_regions;
		3307	reload_facedata;
		3308	#reload_archetypes;#d#
		3309	reload_archetypes;
		3310	reload_treasures;
		3311
		3312	warn "finished reloading resource files\n";
		3313	}
		3314
		3315	sub init {
		3316	reload_resources;
		3317	}
		3318
		3319	sub reload_config {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3320	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3321	or return;
1979		3322
1980	local $/;	3323	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3324	*CFG = YAML::Load <$fh>;
1982		3325
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3326	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3327
		3328	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3329	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1984		3330
1985	if (exists $CFG{mlockall}) {	3331	if (exists $CFG{mlockall}) {
1986	eval {	3332	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3333	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3334	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3335	};
1990	warn $@ if $@;	3336	warn $@ if $@;
1991	}	3337	}
1992	}	3338	}
1993		3339
1994	sub main {	3340	sub main {
1995	# we must not ever block the main coroutine	3341	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3342	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3343	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3344	(async {
1999	Event::one_event;	3345	$Coro::current->{desc} = "IDLE BUG HANDLER";
2000	})->();	3346	EV::loop EV::LOOP_ONESHOT;
		3347	})->prio (Coro::PRIO_MAX);
2001	};	3348	};
2002		3349
2003	cfg_load;	3350	reload_config;
2004	db_load;	3351	db_init;
2005	load_extensions;	3352	load_extensions;
		3353
		3354	$TICK_WATCHER->start;
		3355	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2006	Event::loop;	3356	EV::loop;
2007	}	3357	}
2008		3358
2009	#############################################################################	3359	#############################################################################
2010	# initialisation	3360	# initialisation and cleanup
2011		3361
		3362	# install some emergency cleanup handlers
		3363	BEGIN {
		3364	our %SIGWATCHER = ();
		3365	for my $signal (qw(INT HUP TERM)) {
		3366	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3367	cf::cleanup "SIG$signal";
		3368	};
		3369	}
		3370	}
		3371
		3372	sub write_runtime {
		3373	my $runtime = "$LOCALDIR/runtime";
		3374
		3375	# first touch the runtime file to show we are still running:
		3376	# the fsync below can take a very very long time.
		3377
		3378	IO::AIO::aio_utime $runtime, undef, undef;
		3379
		3380	my $guard = cf::lock_acquire "write_runtime";
		3381
		3382	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3383	or return;
		3384
		3385	my $value = $cf::RUNTIME + 90 + 10;
		3386	# 10 is the runtime save interval, for a monotonic clock
		3387	# 60 allows for the watchdog to kill the server.
		3388
		3389	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3390	and return;
		3391
		3392	# always fsync - this file is important
		3393	aio_fsync $fh
		3394	and return;
		3395
		3396	# touch it again to show we are up-to-date
		3397	aio_utime $fh, undef, undef;
		3398
		3399	close $fh
		3400	or return;
		3401
		3402	aio_rename "$runtime~", $runtime
		3403	and return;
		3404
		3405	warn "runtime file written.\n";
		3406
		3407	1
		3408	}
		3409
		3410	sub emergency_save() {
		3411	my $freeze_guard = cf::freeze_mainloop;
		3412
		3413	warn "enter emergency perl save\n";
		3414
		3415	cf::sync_job {
		3416	# use a peculiar iteration method to avoid tripping on perl
		3417	# refcount bugs in for. also avoids problems with players
		3418	# and maps saved/destroyed asynchronously.
		3419	warn "begin emergency player save\n";
		3420	for my $login (keys %cf::PLAYER) {
		3421	my $pl = $cf::PLAYER{$login} or next;
		3422	$pl->valid or next;
		3423	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3424	$pl->save;
		3425	}
		3426	warn "end emergency player save\n";
		3427
		3428	warn "begin emergency map save\n";
		3429	for my $path (keys %cf::MAP) {
		3430	my $map = $cf::MAP{$path} or next;
		3431	$map->valid or next;
		3432	$map->save;
		3433	}
		3434	warn "end emergency map save\n";
		3435
		3436	warn "begin emergency database checkpoint\n";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438	warn "end emergency database checkpoint\n";
		3439	};
		3440
		3441	warn "leave emergency perl save\n";
		3442	}
		3443
		3444	sub post_cleanup {
		3445	my ($make_core) = @_;
		3446
		3447	warn Carp::longmess "post_cleanup backtrace"
		3448	if $make_core;
		3449	}
		3450
2012	sub reload() {	3451	sub do_reload_perl() {
2013	# can/must only be called in main	3452	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3453	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	3454	warn "can only reload from main coroutine";
2016	return;	3455	return;
2017	}	3456	}
2018		3457
2019	warn "reloading...";	3458	warn "reloading...";
2020		3459
2021	my $guard = freeze_mainloop;	3460	warn "entering sync_job";
		3461
		3462	cf::sync_job {
		3463	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	3464	cf::emergency_save;
		3465	cf::write_runtime; # external watchdog should not bark
2023		3466
2024	eval {	3467	warn "syncing database to disk";
		3468	BDB::db_env_txn_checkpoint $DB_ENV;
		3469
2025	# if anything goes wrong in here, we should simply crash as we already saved	3470	# if anything goes wrong in here, we should simply crash as we already saved
2026		3471
2027	# cancel all watchers	3472	warn "flushing outstanding aio requests";
2028	for (Event::all_watchers) {	3473	for (;;) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3474	BDB::flush;
		3475	IO::AIO::flush;
		3476	Coro::cede_notself;
		3477	last unless IO::AIO::nreqs || BDB::nreqs;
		3478	warn "iterate...";
2030	}	3479	}
2031		3480
		3481	++$RELOAD;
		3482
2032	# cancel all extension coros	3483	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	3484	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	3485	%EXT_CORO = ();
2035		3486
2036	# unload all extensions	3487	warn "removing commands";
2037	for (@exts) {	3488	%COMMAND = ();
		3489
		3490	warn "removing ext/exti commands";
		3491	%EXTCMD = ();
		3492	%EXTICMD = ();
		3493
		3494	warn "unloading/nuking all extensions";
		3495	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	3496	warn "... unloading $pkg";
2039	unload_extension $_;	3497
		3498	if (my $cb = $pkg->can ("unload")) {
		3499	eval {
		3500	$cb->($pkg);
		3501	1
		3502	} or warn "$pkg unloaded, but with errors: $@";
2040	}	3503	}
2041		3504
		3505	warn "... nuking $pkg";
		3506	Symbol::delete_package $pkg;
		3507	}
		3508
2042	# unload all modules loaded from $LIBDIR	3509	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	3510	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3511	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		3512
2046	warn "removing <$k>";	3513	warn "... unloading $k";
2047	delete $INC{$k};	3514	delete $INC{$k};
2048		3515
2049	$k =~ s/\.pm$//;	3516	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	3517	$k =~ s/\//::/g;
2051		3518
…		…
2054	}	3521	}
2055		3522
2056	Symbol::delete_package $k;	3523	Symbol::delete_package $k;
2057	}	3524	}
2058		3525
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	3526	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3527	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3528	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3529
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	3530	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	3531	delete $INC{"cf.pm"};
		3532	delete $INC{"cf/pod.pm"};
2072		3533
2073	# don't, removes xs symbols, too,	3534	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3535	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3536	#Symbol::delete_package __PACKAGE__;
2076		3537
2077	# reload cf.pm	3538	warn "unload completed, starting to reload now";
		3539
2078	warn "reloading cf.pm";	3540	warn "reloading cf.pm";
2079	require cf;	3541	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3542	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		3543
2082	# load config and database again	3544	warn "loading config and database again";
2083	cf::cfg_load;	3545	cf::reload_config;
2084	cf::db_load;
2085		3546
2086	# load extensions
2087	warn "load extensions";	3547	warn "loading extensions";
2088	cf::load_extensions;	3548	cf::load_extensions;
2089		3549
2090	# reattach attachments to objects	3550	warn "reattaching attachments to objects/players";
2091	warn "reattach";	3551	_global_reattach; # objects, sockets
2092	_global_reattach;	3552	warn "reattaching attachments to maps";
		3553	reattach $_ for values %MAP;
		3554	warn "reattaching attachments to players";
		3555	reattach $_ for values %PLAYER;
		3556
		3557	warn "leaving sync_job";
		3558
		3559	1
		3560	} or do {
		3561	warn $@;
		3562	cf::cleanup "error while reloading, exiting.";
2093	};	3563	};
2094		3564
2095	if ($@) {	3565	warn "reloaded";
2096	warn $@;
2097	warn "error while reloading, exiting.";
2098	exit 1;
2099	}
2100
2101	warn "reloaded successfully";
2102	};	3566	};
2103		3567
2104	#############################################################################	3568	our $RELOAD_WATCHER; # used only during reload
2105		3569
2106	unless ($LINK_MAP) {	3570	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	3571	# doing reload synchronously and two reloads happen back-to-back,
		3572	# coro crashes during coro_state_free->destroy here.
2108		3573
2109	$LINK_MAP->width (41);	3574	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2110	$LINK_MAP->height (41);	3575	do_reload_perl;
2111	$LINK_MAP->alloc;	3576	undef $RELOAD_WATCHER;
2112	$LINK_MAP->path ("{link}");	3577	};
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,
2119	cb => sub {
2120	$_[0]->w->cancel;
2121
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});
2140
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3578	}
2146
2147	register "<global>", __PACKAGE__;
2148		3579
2149	register_command "reload" => sub {	3580	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3581	my ($who, $arg) = @_;
2151		3582
2152	if ($who->flag (FLAG_WIZ)) {	3583	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3584	$who->message ("reloading server.");
		3585	async {
		3586	$Coro::current->{desc} = "perl_reload";
		3587	reload_perl;
		3588	};
2156	}	3589	}
2157	};	3590	};
2158		3591
2159	unshift @INC, $LIBDIR;	3592	unshift @INC, $LIBDIR;
2160		3593
2161	$TICK_WATCHER = Event->timer (	3594	my $bug_warning = 0;
2162	reentrant => 0,	3595
2163	prio => 0,	3596	our @WAIT_FOR_TICK;
2164	at => $NEXT_TICK || $TICK,	3597	our @WAIT_FOR_TICK_BEGIN;
2165	data => WF_AUTOCANCEL,	3598
2166	cb => sub {	3599	sub wait_for_tick {
		3600	return unless $TICK_WATCHER->is_active;
		3601	return if $Coro::current == $Coro::main;
		3602
		3603	my $signal = new Coro::Signal;
		3604	push @WAIT_FOR_TICK, $signal;
		3605	$signal->wait;
		3606	}
		3607
		3608	sub wait_for_tick_begin {
		3609	return unless $TICK_WATCHER->is_active;
		3610	return if $Coro::current == $Coro::main;
		3611
		3612	my $signal = new Coro::Signal;
		3613	push @WAIT_FOR_TICK_BEGIN, $signal;
		3614	$signal->wait;
		3615	}
		3616
		3617	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3618	if ($Coro::current != $Coro::main) {
		3619	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3620	unless ++$bug_warning > 10;
		3621	return;
		3622	}
		3623
		3624	$NOW = $tick_start = EV::now;
		3625
2167	cf::server_tick; # one server iteration	3626	cf::server_tick; # one server iteration
		3627
2168	$RUNTIME += $TICK;	3628	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3629	$NEXT_TICK = $_[0]->at;
2170		3630
2171	# if we are delayed by four ticks or more, skip them all	3631	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3632	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2173		3633	Coro::async_pool {
2174	$TICK_WATCHER->at ($NEXT_TICK);	3634	$Coro::current->{desc} = "runtime saver";
2175	$TICK_WATCHER->start;
2176	},
2177	);
2178
2179	IO::AIO::max_poll_time $TICK * 0.2;
2180
2181	Event->io (
2182	fd => IO::AIO::poll_fileno,
2183	poll => 'r',
2184	prio => 5,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,
2191	after => 0,
2192	interval => 10,
2193	cb => sub {
2194	(Coro::unblock_sub {
2195	write_runtime	3635	write_runtime
2196	or warn "ERROR: unable to write runtime file: $!";	3636	or warn "ERROR: unable to write runtime file: $!";
2197	})->();	3637	};
2198	},	3638	}
2199	);	3639
		3640	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3641	$sig->send;
		3642	}
		3643	while (my $sig = shift @WAIT_FOR_TICK) {
		3644	$sig->send;
		3645	}
		3646
		3647	$LOAD = ($NOW - $tick_start) / $TICK;
		3648	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3649
		3650	_post_tick;
		3651	};
		3652	$TICK_WATCHER->priority (EV::MAXPRI);
		3653
		3654	{
		3655	# configure BDB
		3656
		3657	BDB::min_parallel 8;
		3658	BDB::max_poll_reqs $TICK * 0.1;
		3659	$Coro::BDB::WATCHER->priority (1);
		3660
		3661	unless ($DB_ENV) {
		3662	$DB_ENV = BDB::db_env_create;
		3663	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3664	| BDB::LOG_AUTOREMOVE, 1);
		3665	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3666	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3667
		3668	cf::sync_job {
		3669	eval {
		3670	BDB::db_env_open
		3671	$DB_ENV,
		3672	$BDBDIR,
		3673	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3674	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3675	0666;
		3676
		3677	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3678	};
		3679
		3680	cf::cleanup "db_env_open(db): $@" if $@;
		3681	};
		3682	}
		3683
		3684	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3685	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3686	};
		3687	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3688	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3689	};
		3690	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3691	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3692	};
		3693	}
		3694
		3695	{
		3696	# configure IO::AIO
		3697
		3698	IO::AIO::min_parallel 8;
		3699	IO::AIO::max_poll_time $TICK * 0.1;
		3700	$Coro::AIO::WATCHER->priority (1);
		3701	}
		3702
		3703	my $_log_backtrace;
		3704
		3705	sub _log_backtrace {
		3706	my ($msg, @addr) = @_;
		3707
		3708	$msg =~ s/\n//;
		3709
		3710	# limit the # of concurrent backtraces
		3711	if ($_log_backtrace < 2) {
		3712	++$_log_backtrace;
		3713	async {
		3714	$Coro::current->{desc} = "abt $msg";
		3715
		3716	my @bt = fork_call {
		3717	@addr = map { sprintf "%x", $_ } @addr;
		3718	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3719	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3720	or die "addr2line: $!";
		3721
		3722	my @funcs;
		3723	my @res = <$fh>;
		3724	chomp for @res;
		3725	while (@res) {
		3726	my ($func, $line) = splice @res, 0, 2, ();
		3727	push @funcs, "[$func] $line";
		3728	}
		3729
		3730	@funcs
		3731	};
		3732
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] $_\n" for @bt;
		3735	--$_log_backtrace;
		3736	};
		3737	} else {
		3738	LOG llevInfo, "[ABT] $msg\n";
		3739	LOG llevInfo, "[ABT] [suppressed]\n";
		3740	}
		3741	}
		3742
		3743	# load additional modules
		3744	use cf::pod;
2200		3745
2201	END { cf::emergency_save }	3746	END { cf::emergency_save }
2202		3747
2203	1	3748	1
2204		3749

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